Thermal tuning of chirped SOI sidewall grating for tun-able wavelength,delay,and bandwidth

• 作者: DING Jia-yue ZOU Xi-hua ZOU Fang PAN Wei YAN Lian-shan LUO Bin
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: Devices
• 页码范围: 205-208
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-021-0066-x

摘要

In this work,we design a silicon-on-insulator(SOI)sidewall grating with tunable wavelength,delay,and bandwidth through thermal tuning.Incorporating uniform sidewall corrugations and a linearly chirped rib waveguide,the ther-mo-optic effect imposed on chirped rib waveguide changes the effective refractive index,due to the resultant of the temperature gradient.Consequently,tunable wavelength,delay,and bandwidth in SOI sidewall grating are achieved.In the numerical simulations,the designed SOI grating is demonstrated with a tunable wavelength from 1 560.7 nm to 1 561.9 nm,a tunable delay from 0 to 38 ps,and a tunable bandwidth from 1 nm to 1.5 nm.